Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,773 questions · 1,817 findings · 212 reviews · Headline outcomes only

No studies found 383 · 21.1%GRADE not reported 192 · 10.6%Very low 472 · 26%Low 444 · 24.4%Moderate 228 · 12.5%High 98 · 5.4%

Isopropyl alcohol vs usual care

Adverse events (common reactions to aromatherapy include skin rashes, dyspnoea, headache, cardiac arrhythmias, hypotension, hypertension or dizziness) · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…

The review found no eligible studies for this question.

1 finding from 1 review

Isopropyl alcohol vs Normal saline

Adverse events (common reactions to aromatherapy include skin rashes, dyspnoea, headache, cardiac arrhythmias, hypotension, hypertension or dizziness) · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…

The review found no eligible studies for this question.

1 finding from 1 review

Aromatherapy vs placebo

Adverse events (common reactions to aromatherapy include skin rashes, dyspnoea, headache, cardiac arrhythmias, hypotension, hypertension or dizziness) · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…

The review found no eligible studies for this question.

1 finding from 1 review

Peppermint vs placebo

Adverse events (common reactions to aromatherapy include skin rashes, dyspnoea, headache, cardiac arrhythmias, hypotension, hypertension or dizziness) · adults and children having any type of surgical procedure under general anaesthesia, regional anaesthesia or sedation, as hospital…

The review found no eligible studies for this question.

1 finding from 1 review

Adverse effects of pharmacological intervention vs control

Chest tightness · adults and children undergoing general anaesthesia including the muscle relaxant rocuronium bromide

It is very uncertain whether adverse effects of pharmacological intervention changes chest tightness compared with control (very low certainty).

1 finding from 1 review

Any anti‐adhesion therapy vs placebo or no treatment following operative hysteroscopy

Live birth · women treated by operative hysteroscopy for uterine pathology associated with subfertility or adverse pregnancy outcome

It is very uncertain whether any anti‐adhesion therapy changes live birth a compared with placebo or no treatment following operative hysteroscopy (very low certainty).

1 finding from 1 review

Thoracic epidural anaesthesia vs conventional pain control

Persistent pain 3 to 18 months after thoracotomy (We defined persistent postsurgical pain as new pain that did not exist before the operation, measured using differences in scores based on validated pain scales; patient interview between 3 to 18 m... · Patients undergoing thoracotomy

Thoracic epidural anaesthesia probably leads to lower persistent pain 3 to 18 months after thoracotomy (We defined… compared with conventional pain control (moderate certainty).

1 finding from 1 review

Maintenance anaesthesia: inhalational vs intravenous

Nausea and vomiting ‐ subgroup analysis: thiopentone or halothane + N2O versus propofol or propofol + N2O · paediatric

Maintenance anaesthesia: inhalational may leads to higher nausea and vomiting ‐ subgroup analysis: thiopentone or halothane +… compared with intravenous (low certainty).

2 findings from 1 review